of guatemala



(No Model.)

J. SMOUT. MACHINE POR HULLING AND POLISHING GOPPBE.

4vil/17 Patented Jan. 5, 1886.

N, PETKRSv Phum-Lnhogmplmr. washingmn, 11C

. UNITED STATES PATENT OFFICE.

JULES SMOUT, OF GUATEMALA, GUATEMALA, CENTRAL AMERICA.

MACHINE FOR HULLING AND POLISHING COFFEE.

SPECIFICATION forming part of Letters Patent No. 333,788, dated January5, 1886.

Application filed September 14, 1885.

To all whom. it may concern:

Be it known that I, J ULEs SMoUT, a citizen of the Republic ofGuatemala, residing in the city and Republic of Guatemala, CentralAmerica, engineer, have invented a new and useful Machine for Hullingand Polishing Coffee, (for which I have obtained a patent in GreatBritain, No. 10,086, bearing date July l2, 1884,) of which the followingis a specification.

My invention has reference to the construction of a machine for hullingand polishing coffee; and it consists of a cylindrical casing mountedeither horizontally or vertically on suitable framing, in which arevolving cylinder is placed concentrically. On the inside surface ofthe casing and the outside surface of the cylinder is formed a series ofspiral ribs having an increasing pitch. The discharge ends of thecylinder and casing are made preferably larger in diameter than the feedends. The said casing is also provided with a feed` and dischargeopening. The feed-opening is fitted with a hopper and regulating-door,adjusted by means of a screw and hand-wheel, and the discharge-outlet isfitted with a hinged door having affixed to it a lever and movableweight for adjusting pressure on the coffee while being` hulled andpolished. The device is provided with an exhaust-fan' for the removal ofthe dust and chaff.

The accompanying drawings represent a machine constructed horizontallyaccording` to this invention.

Figure l is a side elevation in part section. Fig. 2-is an endelevation. Fig. 3 is a transverse section on the line a: fr, and Fig. 4is a transverse section on the line y y.

Similar letters of reference indicate corresponding parts in all theiigures.

ais a revolving cylinder, on the external surface of which is formed aseries of spiral ribs having an increasing pitch.

b is a cylindrical casing having a series of spiral ribs, C, formed onits internal surface, and arranged similarly to those on the surface ofthe cylinder.

d is a hopper, and Za regulatingdoor actuated by hand-Wheel f.

gis a hinged outlet-door, having attached to it a lever and movableWeight, h.

i is the discharging-spout; j, the exhaustfan; k, the suction-pipe tothe fan; m, the hopper on pipe k,- p, the pulley, acting also as aSerial No. 177,012. (No model.) Patented in England July 12, 1884, No.10,086.

iiy-wheel, over which the belt from the source of power driving themachine passes. g is a pulley keyed on the same axle, carrying a belt(indicated by dotted lines) and driving the pulley r, which gives motionto the pulley s, from which a belt (shown by dotted lilies) transmitsthe motion to the pulley t, keyed on the axle of the fan j.

The form of the ribs is seen in section in Figs. 3 and 4. V

The action of the machine is as follows: The hopper d being suppliedwith coffee to be cleaned, rotary motion is imparted to the cylinder ci,theresult of which is, that the hulls of the coffee are removed and thebeans are polished, owing to the action of the spiral ribs between whichthe coffee is treated, the coffee-beans and husks passing out throughthe outlet-door g under pressure, which is regulated by the position ofweight h on the doorlever, and are discharged by the outletspout t' intothe hopper m, and, passing into the'pipe k, the husks are removed by thefan j and discharged at n, while the cleaned'coffee is delivered atoutlet o, provided with a sliding door.

I am aware that prior to my invention ma chiues for hulling andpolishing coffee have been made, but differing in their construction andmanner of action from my said invention. l therefore do not claim,broadly, every form of machine for accomplishing this purpose; but

What l do claim as my invention, and desire to secure by Letters Patent,is-

1. A machine for hulling and polishing coffee, embodyingin itsconstruction an external casing having internal spiral fluted surfacesof increasing pitch affixed thereto, and an internal revolving cylinderhaving ribs or flutes of increasing pitch, substantially as shown anddescribed.

2. A machine for hulling and polishing coffee, embodying in itsconstruction an external casing having internal spiral iluted surfacesof increasing pitch, an internal revolving cylinder having ribs or utesof increasing pitch, a hinged outlet-door, a regulated hopper, and arefuse exhaust-fan, substantially as shown and described.

JULES SMOUT. Witnesses:

J. VENDE PUTTE, P. BES.

